Intelsat IV F-2

Last updated

Intelsat IV F-2
Mission type Communications
Operator Intelsat
COSPAR ID 1971-006A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 04881
Mission duration7 years (planned)
Spacecraft properties
Bus HS-312
Manufacturer Hughes Aircraft
Launch mass1,414 kilograms (3,117 lb)
BOL mass 730 kilograms (1,610 lb)
Start of mission
Launch dateJanuary 26, 1971, 00:36:03 (1971-01-26UTC00:36:03Z) UTC [1]
Rocket Atlas SLV-3C Centaur-D
Launch site Cape Canaveral LC-36A
Orbital parameters
Reference system Geocentric [2]
Regime Geostationary [2]
Eccentricity 0.00645 [2]
Perigee altitude 35,801 kilometers (22,246 mi) [2]
Apogee altitude 36,349 kilometers (22,586 mi) [2]
Inclination 0.6° [2]
Period 1,450.8 minutes [2]
Epoch January 26, 1971 [2]
Transponders
Band12 IEEE C-band
Bandwidth40 MHz
Intelsat IV

Intelsat IV F-2 was a geostationary communication satellite built by Hughes and owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

Contents

History

The Intelsat IV F-2 was part of the Intelsat IV series which consisted of eight communications satellites, launched from Cape Canaveral during the early 1970s, marked the fifth generation of geostationary communications satellites developed by the Hughes Aircraft Company since 1963 with the launch of Syncom II, the world's first synchronous satellite. The Syncom II was 15 cm high and 28 inches in diameter, weighing 78 pounds in orbit. In contrast, the Intelsat IVs weighed more than 1,300 pounds (590 kg) into orbit and were more than 17 feet (5.2 meters) in diameter. All seven satellites exceeded their projected life expectancies and were withdrawn from active duty, the last of which, the Intelsat IV F-1 was retired in October 1987.

The satellite was equipped with 12 C-band transponders. It had 6,000 two-way relay phone calls or broadcast 12 concurrent color television programs or mixed combinations of communications traffic including data and fax.

The satellite had 12 channels of broadband communication. Each channel had a bandwidth of 40 MHz and provided about 500 communication circuits.

Launch

The satellite was successfully launched into space on January 26, 1971, by means of an Atlas SLV-3C Centaur-D vehicle from the Cape Canaveral Air Force Station in Florida, United States. It had a launch mass of 1,414 kg. [3]

See also

Related Research Articles

Syncom started as a 1961 NASA program for active geosynchronous communication satellites, all of which were developed and manufactured by the Space and Communications division of Hughes Aircraft Company. Syncom 2, launched in 1963, was the world's first geosynchronous communications satellite. Syncom 3, launched in 1964, was the world's first geostationary satellite.

Intelsat 604, previously named Intelsat VI F-4, was a communications satellite operated by Intelsat. Launched in 1990, it was the third of five Intelsat VI satellites to be launched. The Intelsat VI series was constructed by Hughes Aircraft, based on the HS-389 satellite bus.

Intelsat II F-1, also known as Blue Bird was a communications satellite operated by Intelsat. Launched in 1966 it was intended for operations in geostationary orbit over the Pacific Ocean to provide a communications link between Australia and the United States, however a malfunction prevented the satellite from reaching its planned orbit.

Intelsat II F-2, also known as Lani Bird, was a communications satellite operated by Intelsat. Launched in 1967, it was operated in geostationary orbit at a longitude of 174 degrees east until 1969.

Intelsat II F-4 was a communications satellite operated by Intelsat. Launched in 1967 it was operated in geostationary orbit at a longitude of 176 degrees east and later 166 degrees west.

Intelsat III F-2 was a communications satellite operated by Intelsat. Launched in 1968 it was operated in geostationary orbit at a longitude of 24 degrees west for around eighteen months.

Intelsat IV F-1 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

Intelsat III F-5 was a communications satellite intended to be operated by Intelsat. Launched towards geostationary orbit in 1969 it failed to achieve orbit.

Intelsat IV F-3 was a geostationary communication satellite built by Hughes and owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years.

Intelsat IV F-4 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

<span class="mw-page-title-main">Intelsat IV F-5</span> Luxembourg satellite for geostationary communication

Intelsat IV F-5 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

Intelsat IV F-6 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

Intelsat IV F-7 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was seven years.

Intelsat IV F-8 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-312 platform and its estimated useful life was 7 years.

<span class="mw-page-title-main">Intelsat IVA F-2</span>

Intelsat IVA F-2 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years.

<span class="mw-page-title-main">Intelsat IVA F-1</span>

Intelsat IVA F-1 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years.

<span class="mw-page-title-main">Intelsat IVA F-3</span>

Intelsat IVA F-3 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years.

<span class="mw-page-title-main">Intelsat IVA F-4</span> Geostationary communication satellite

Intelsat IVA F-4 was a geostationary communication satellite built by Hughes. It was owned by Intelsat.

<span class="mw-page-title-main">Intelsat IVA F-5</span>

Intelsat IVA F-5 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years. However, the satellite was destroyed in a launch failure.

<span class="mw-page-title-main">Intelsat IVA F-6</span> Communication satellite launched in 1978

Intelsat IVA F-6 was a geostationary communication satellite built by Hughes, it was owned by Intelsat. The satellite was based on the HS-353 platform and its estimated useful life was 7 years.

References

  1. ↑ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved April 22, 2017.
  2. 1 2 3 4 5 6 7 8 NASA, Goddard Space Flight Center. "INTELSAT 4 F-2". NSSDC Master Catalog. Retrieved April 22, 2017.
  3. ↑ Krebs, Gunter. Intelsat-4A. Gunter's Space Page. Retrieved 22 April 2017.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.